Line data    Source code

       1             : // Copyright (c) 2019-2021 The Bitcoin Core developers
       2             : // Distributed under the MIT software license, see the accompanying
       3             : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4             : 
       5             : #include <chainparams.h>
       6             : #include <consensus/merkle.h>
       7             : #include <consensus/validation.h>
       8             : #include <core_io.h>
       9             : #include <core_memusage.h>
      10             : #include <primitives/block.h>
      11             : #include <pubkey.h>
      12             : #include <streams.h>
      13             : #include <test/fuzz/fuzz.h>
      14             : #include <util/chaintype.h>
      15             : #include <validation.h>
      16             : #include <version.h>
      17           2 : 
      18           2 : #include <cassert>
      19             : #include <string>
      20             : 
      21           0 : void initialize_block()
      22             : {
      23           0 :     SelectParams(ChainType::REGTEST);
      24           0 : }
      25             : 
      26           4 : FUZZ_TARGET(block, .init = initialize_block)
      27             : {
      28           0 :     CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
      29           0 :     CBlock block;
      30             :     try {
      31             :         int nVersion;
      32           0 :         ds >> nVersion;
      33           0 :         ds.SetVersion(nVersion);
      34           0 :         ds >> block;
      35           0 :     } catch (const std::ios_base::failure&) {
      36             :         return;
      37           0 :     }
      38           0 :     const Consensus::Params& consensus_params = Params().GetConsensus();
      39           0 :     BlockValidationState validation_state_pow_and_merkle;
      40           0 :     const bool valid_incl_pow_and_merkle = CheckBlock(block, validation_state_pow_and_merkle, consensus_params, /* fCheckPOW= */ true, /* fCheckMerkleRoot= */ true);
      41           0 :     assert(validation_state_pow_and_merkle.IsValid() || validation_state_pow_and_merkle.IsInvalid() || validation_state_pow_and_merkle.IsError());
      42           0 :     (void)validation_state_pow_and_merkle.Error("");
      43           0 :     BlockValidationState validation_state_pow;
      44           0 :     const bool valid_incl_pow = CheckBlock(block, validation_state_pow, consensus_params, /* fCheckPOW= */ true, /* fCheckMerkleRoot= */ false);
      45           0 :     assert(validation_state_pow.IsValid() || validation_state_pow.IsInvalid() || validation_state_pow.IsError());
      46           0 :     BlockValidationState validation_state_merkle;
      47           0 :     const bool valid_incl_merkle = CheckBlock(block, validation_state_merkle, consensus_params, /* fCheckPOW= */ false, /* fCheckMerkleRoot= */ true);
      48           0 :     assert(validation_state_merkle.IsValid() || validation_state_merkle.IsInvalid() || validation_state_merkle.IsError());
      49           0 :     BlockValidationState validation_state_none;
      50           0 :     const bool valid_incl_none = CheckBlock(block, validation_state_none, consensus_params, /* fCheckPOW= */ false, /* fCheckMerkleRoot= */ false);
      51           0 :     assert(validation_state_none.IsValid() || validation_state_none.IsInvalid() || validation_state_none.IsError());
      52           0 :     if (valid_incl_pow_and_merkle) {
      53           0 :         assert(valid_incl_pow && valid_incl_merkle && valid_incl_none);
      54           0 :     } else if (valid_incl_merkle || valid_incl_pow) {
      55           0 :         assert(valid_incl_none);
      56           0 :     }
      57           0 :     (void)block.GetHash();
      58           0 :     (void)block.ToString();
      59           0 :     (void)BlockMerkleRoot(block);
      60           0 :     if (!block.vtx.empty()) {
      61           0 :         (void)BlockWitnessMerkleRoot(block);
      62           0 :     }
      63           0 :     (void)GetBlockWeight(block);
      64           0 :     (void)GetWitnessCommitmentIndex(block);
      65           0 :     const size_t raw_memory_size = RecursiveDynamicUsage(block);
      66           0 :     const size_t raw_memory_size_as_shared_ptr = RecursiveDynamicUsage(std::make_shared<CBlock>(block));
      67           0 :     assert(raw_memory_size_as_shared_ptr > raw_memory_size);
      68           0 :     CBlock block_copy = block;
      69           0 :     block_copy.SetNull();
      70           0 :     const bool is_null = block_copy.IsNull();
      71           0 :     assert(is_null);
      72           0 : }